Stopping attachment for phonographs



July 6 1926. 3,591,244

F. E SMTH STOPPING ATTACHMENT FOR PHONOGRAPHS Filed Jur 1e 7, 1923 3 Sheets-Shet 1 [n vent-0 -F l ng-l 2; 6am

T July 6, 1926.

, 1,591,244 F. E SMITH STOPPING ATTACHMENT FOR PHONOGRAPHS I Filed June '7, 1923 3 Sheets-Sheet 2 [rz uenfo r July 6,1926. 1,591,244

' 1 F. E SMITH I STOPPING ATTACHMENT FOR PHONOGRAPHS Filed June 7 1923 3 Sheets-Sheet 3 Patented July 6,

Y UNITED I sures;

PATENT? OFFICE-51 FRANK E. SMITH, OFT-ROY, NEW ironK, AssIenon' or own-nature n. AUG 'srUs,

- V pIL DEHNINQQFIBOY,NEW YQRK. o

' s'rorrrne'nrrnomvrnnr non rrroivoonArnsfi J I A plication filed June 7,

Reference may be. had. to

an in drawin s and the reference-char acters marked thereon, which forma part of this specification. Similar characters refer to similar parts in the severa-l' figures therein. 3 I i This invention relates to-means for automatically stopping the rotation of the turntable of a phonograph or the like-at the end of the record-inducedmovement of the tone-arm of the instrument.- V v One object of the invention is to quickly stop the rotation-of theturntable upon coin pleting the reproduction of the record without materially retarding the speed of the turntable during the reproduction of 1 any part of the record, 7

Another object ,of the invention is to automatically raise the needle from: the record and impart are'turngmovement to the tone-arm upon the completion off'the reproduction ofthe record] Other objects will 'appearin connection with the following description.

Fig. 1 of the drawings is; a top plan view of a phonograph provided with myimproved stop-mechanism showing the tone?v arm atthe limitof its outward or rearward movement; 1

Fig. 2 is a similar view showing the tone} 1 arm at approximately the limitl ofits in ward or' forward movement. v r Fig. 3 is a vertical ection of the same; taken on the broken line33 in Fig. 1, viewed in the direction of'the arrow. Fig. 4 is a bottom plan'view of a brokenaway portion of the tone-arm and: parts mounted thereupon. i I Fig. 5 is a vertical cross-section: taken through the tone-arm on 'the broken line 5 5 in Fig. 1. 1: Fig. 6 is a vertical section taken on the broken line 66 in F ig. 2 through. the

brake. v V Fig. 7 is a vertical cross-section taken through the cam mechanismonthebroken line 7-7 in Fig. 8.

Fig. 8 is a view intronti elevation ofithe' I engagement withthe flange, 13,. of the turns.

cam-mechanism showing the tone-arm returning rod in cross-sectionin position to maintain the. tone-arm in its braking position; ,l

Fig. 9 is a similarview showing said rod in brake-releasing position.

Fig. 10 is a similar view showing said returning rod "toward". the exit from the gate.

is, toward at 17.

19 23. Serial No. 643,3 6.,

mechanism.

. "Fig. 11 is a cross-section of. the toneaarmroller. p V y 1 Referring'to'the' drawings wherein the lnvention is shownv in .prefefledfoim, 1 is the top or body of a phonographupon which is rotatively mounted-the usual turntable, 2 havinga depending peripheral flange, 3.

The turntable has the usual spindle, 4 upon which is mounted the record, .5, to rotate-with theturntable.

Theinstrument-alsohas the usual gooseneck toneearm, upon "the outer end of] which a sound-box, 7, is mounted in. the

provided with an antifriction- I. y

described: are found in frod about to, enter the 'gate 'in the. cami usual manner, said sound-boX-carries the 'usual needle, 8, engageable-with the groove -intherecor'cl.

The parts (above theordinaryphonograph and further description thereof'willibe unnecessary.

In carryingout my invention in preferred 7 2 form, I mount upon the top or body, -1, of

the; phonograph cam-mechanism including a pair of vertically j disposedfplates, 1 0 and 11, supported-by a horizontal base-plate,12, adjustably mounted uponthe top, 1, by means of screws, 13, inserted throughslots, 14, in said base-plate into saidltop,.1.

The'plate",,1 0, is formed with a top sur- .face, 15,.which is approximately horizontal although preferably slight-1y inclined down wardly toward the" entrance to-a gate, 16-, formed between said plates, 10 and 11;

. The upper: edge 01 the plate, 11, which formsthe-bottomof the gate,16, is in the form of-a cam inclined or curved downfl wardly and rearwardlyi ii'romthe entrance to'the' gate, and upwardly and*rearwardly "The upper edge of theplate, 1 0,, is in? clined f downwardly and rearwardly,-that table by-movement of the tone-arm.

, Pivotally mounted at 20, upon the under the exit from the gate as. shown 318, uponthe outer end ofwhich is a brake, Y

side ofthe tone-arm on an axisat right angles to the tone-arm is a .rod,,21, extend= ng'along the under side of the tone-arm, the outer end of which rod adapted to vertical slot, 22, in the bracket, 18, in which slot the rod is adapted to play vertically.

A coil-spring, 23, tends to force the outer end of the rod, 21, downward.

In fixed relation to the-rod, 21,011 opposite side of the bearing, 20, from which therod, 21, extends is a shorter rod, 2 1, the outer end of which extends beneath the sound-box,7, said rod, 24, "being adapted to engage and raise the sound box and goose;

neck, 25, when the outer end of the rod, 211', is depressed by the spring, 2n.

The outer end of the rod, 21, is adapted to rideovert 1e top'edge or surface of the plate, 10, of "the cam-mechanism and to traverse the gate,"16, of the same.

The cam-mechanismis provided with a spring-latch, 26, adjacent to the exit from the gate, 16, which latch is adapted to yield to permit the rod, 21, to pass out of the gate and then to support the rod at the lower end of the inclined surface, 17, on the plate, 10.

The operation of the device isas follows:

In the stoppedposition of. the tone-arm, 6, the rod, 21, is at the lower end of the surface, 17, on the plate, 10, resting upon the latch, 26, as shown in Fig. 8, in which position the brake, 1-9, is in engagement with the flange, 8, of the turntable, preventing rotation of the turntable as shown in Fig. 1; and the sound-box, 7, is supported by the rod or arm, 24:, in a suificiently elevated position to prevent the needle, 8, from engaging the record, 5, on the turntable.

T 0 start the operation of the phonograph,

the operator'raises the sound-box with his hand, moves the tone-arm, 6, inwa-rdly or forwardly as indicatedby dotted lines in Fig. 1, until the needle is vertically above 'the'beginning of the groove in the record, 5.

This movement moves the brake, 19, out of engagement with the turntable as 111Cl1 cated bydotted lines in Fig. 1, whereupon the turntable begins to rotate.

When the turntable has reached the proper speed, the operator lowers the sound-box to bring the needle into engagement with said groove. The movement of the tonearm just referred to carries the rod, 21, upward over the surface, 17, and on to the surface, 15, of the plate, 10, as shown in Fig. 9. I

The operation of the instrument then proceeds and as the needle traverses the groove in the record and the tone-arm, 6, moves forward or inwardly, the rod, 21, is carried along the surface, 15, on the plate, 10, until at approximately the time that the'needle reaches the end of its grooved path, said rod the will be at the mouth of the gate, 16,-in the position shown in Fig. 10. I

Slight further movement of the needle and tone-arm then carries the rod, 21, into the mouth of the gate, 16, whereupon the spring, 23, quickly forces the rod downward,

saiddownward movement being converted into a traverslng movement along the gate. The movemem of the rod, 21, and the tone-arm moves the brake, '19, lnto engagement with'the turntable, the movement of the turntable thereby being frict-ionally impartedthrough the brake to the tone-arm and rod,L21, thus carrying thefrod, 21, up

Ward and out through-the exit from the 1 gate and past the yielding latch, 26, which immediately springs back beneath the rod and prevents a return movement of the rod into the gate through the gate exit, the rod thus being again supported in the position shown in Fig. 8.

'This movement of the rod through the gate is transmitted to the tone-arm, 6, to move the same rearwardly or outwardly from approximately the position shown in Fig.2, to the position shown in Fig. 1.

The movement thus imparted tothe tone arm, 6, carries the brake, 19, into engagement with the turntable as shown in Fig. 1, and stops the operation of the turntable.

"The initial engagement of the brake, 19,

'with the turntableis not sufhcient to inwith the sound-box, 7, raising the same to a greater degree above the record than shown in Fig. 3, and as the return movement of the tone-arm caused by the mechanism above described is very quickly accomplished theneedle will have passed beyond the edge of the record before the sound-box needle can have any substantial downward movement. r Y 7 p 7 However, the downward incline, "1?, on the plate, 10, may be, and preferably is, such that when the rod, 21, is resting at the bottom thereof upon the latch, 26, the needle will still be supported above the level of the record.

If desired, the rod, 21. may be provided with an antifriction roller, 28, adapted to engage the cam mechanism formed by the plates, 10 and 11.

What I claim as new and desire to secure by Letters Patent is 1. In a talking machine and in combine right angles to the tone-arm; a spring 'for depressing said rod ;;cam-mechanism having a support over which saidiro'd rldes during -the "forward .movement of the tone-arm and 'rovided with a 'ateextendin downwardl P i g b and rearwardly ,fronr the inner endof said support; and means for. automatically raising the -needle-holder by the depression of therodj' '2. In atalking machine and in combination, aturntable; a tone-arnrg pivotally mounted upon a vertical axisyaflvertically movable needle-holder mounted upon 'the- I I carry said rod upwardly-past 'said latch,

tone-arm; a brake carried by the tone-arm into and out ofengagement withfthe-turn-v table; arod extending longitudinally ,of the tone-arm and pivotally connected at on'e end therewith upon a horizontal axisat right angles 'to the tone-arm; a spring for depress ng sald rod; cam-mechanism having a support over which saidrod rides during theforward movement of the tone-arm and pro 7 vided with a gate extending downwardly and rearwardly fromthe inner end of said support, and upwardly and rearwardly toward the outer'endof saidsupport; and

means for automatically raisingthe needleholder by depression of said rod, said brake being engageable with said turntable to' carry said rod upwardlythrough' the rear end of said gatetoward said support.

J 3. In a talking machine and in combination, a, turntable; I a tone-arm; pivotally mounted upon a-v'erti'cal axls; a-vertically I movable needleholder mounted upon the tone-arm;- a brake carried by the "tone-arm into and out of engagement with the turntable; a rod extending longitudinally of the tone-arm and pivotally connected at one end therewith upon ahorizontal axis at right angles to the tone-arm; a spring for depressing said rod; cam-mechanism having a support-over which said rod rides d'u'ring the forward movement of the tone-arm and provided with agate extending downward' ly' and rearwardly from the inner end of saidsupport, and upwardly and rearwardly toward the outer end of'said support; a rod supporting latch adjacent to the exit from a said gate-{and means for automatically raising the 'n'eedle-holder'by depression of said:

I rod; said brakebeing engageable with said turntable to I I through the rear end "of said gate toward said support. I

- 4.111 a talkingmachine and-in combination, a a turntable; a -tone-arm pivotally mounted upon a-vertical'axis; a vertically movable needle-holder mounted "upon the carry said-j 'rod upwardly.

tone-iarm;1a' brake carriedby'the tone-arm V i 'into'and out of engagement with the turn.-

tone-arm and pivotallyconnected at one end therewith upon a horizontalaxis at right angles to the tone'ar1n;-a. springifor depress table; a rod extendinglongitudinally ofthe ing said rod;--cam-meohanism having a supsupport andupwardly and rearwardlytoward the outer endof said support, the exit from i said gate being lower than the en-' trance to the gate; a' rod-supporting latch adjacent to the exit from said gate; and ;means for automatically I raising the needlevholder by depression of said rod, said brake being engageable with said turntable to 5. In a talking machine and'in combinatlon, a turntable -a tone-arm pivotally mounted upon a vertical axis;v a vertically movable needleeholder mounted upon the tone-army a brake carriediby the tone-arm into and out of engagement with the turn,- table; a. rod? extending longitudinally ofthe':

tone-arm and pivotally connected at oneend' therewith; upon, a horizontal axis at right .angles to the tone-arm; aspring for depressingsaid rod; cam-mechanism having a 7 support over which said rod rides during the forward movement of the tone-arm and provided with a gate extending downwardly and rearwardly from the inner end of said support, and upwardly and rearwardly to ward the outerend of said support, the exit "from said gate being lower than the entrance to'the gatefthe outer'end of said support forming a cam surface extending T downwardly" and outwardlyto the exit from the gate; a rod-supporting latch-adjacent to the exit from said gate; and means "for I automatically raisingthe needle holder by depression ofsaid' rod, said brake'being on red upwardly past said latoh- 6; In a'talk'ngmachineand incombina tion, a turntable; a Ltone-ari1r pivotally mounted upon a vertical axis; a vertically movable needle-holder mounted upon a the gageable with said turntable to carry said tone-arm; a ro'd'ext'ending'longitudinally of 1 the tone-arm and pivotally connected atone end therewith u'pon va horizontal axisat rightang-les to the tone-arm; springfor dtpressing said rod; cam-mechanism having I a support overwhichsaid rod r des durlng I the forward movement ofj the tone-arm and provided with a gatev extending downwardly 1 'a-ndrearw'ardly from the inner end ofsaid' support; and a member connected with said od in fixed relation theret'oyand' actuated :by the" downward movement of said rod toengage' and raise the needle-holder.

'7'. In a talking machine and in combina- &

' support, and upwardly and rearwardly toward the outer end of said support; and a 7 member connected with said rod in fixed relation thereto, and actuated by the downward movement of said rod to engage and raise the needle-holder, said brake beingengageable with said turntable to carry said rod upwardly through the rear end of said gate toward said support.

8. In a talking machine and in combination, a turntable; a stone-arm pivetally mounted upon a vertical axis, a vertically movable needle-holder mounted upon the tone-arm; a brake carried by he tone arm into and out of engagement with the turntable; a rod extending longitudinally: of the tone-arm and pivotally connected at one end therewith upon a horizontal axis at right angles to the tone-arm; a spring for depressing said rod; cam-mechanism having a support over which said rod rides during the forward movement of the tone-arm and provided with a gate extending downwardly and rearwardly from the inner end of said support, and upwardly and rearwardly toward the outer end of said'support; a rodsupporting'latch adjacent to the exit from said gate; and a member connected with said rod in fixed relation thereto, and actu ated'by the downward movement of said rod to engage, and raise the needle-holder, said brake being engageable with said turntable to carry said rod upwardly past said latch.

9.111 a talking machine and in combination, a turntable; a tone-arm pivotally mounted upon a vertical axis; a vertically movable needle-holder mounted upon the tone-arm; a brake carried by the tone-ar1n into and out, of engagement with the turntable; a rod extending longitudinally of. the tone-arm and pivotally connected at one end therewith upon a horizontal axis at, right angles to the tone-arm; a spring for depressing said rod; cammechanism having a support over which said rod rides during the forward movement of the tone-arm and provided with agate extending downwardly and rearwardly from theinner end of said support, and upwardly and rearwardly toward the outer end of saidsupport, the exit rmmsaid gate being; lower than the entrance to the gate; a rod-supporting latch adjacent to the exit from said gate; and a member connected with said rod in fixed relation thereto, and actuated by the downward movement of said rod to engage and raise the needle-holder, saidbrake bein engage- :a-ble with said'turntable to carry said rod upwardly past said latch.

10.:In a talking machne and in combination, a turntable; "a tonearm pivotally mounted upon a vertical axis; a vertically movable needle-holder mounted upon the tone-arm; :a brake carried by the tone-arm into and out of engagement with the turn; table; a rod extending longitudinally of the tone-arm andpivotally connected at one end therewith upon a horizontal axis at right angles to the tone-arm; a spring for depressing said rod; cam-mechanism having a support over which sai-drod rides during the forward movement of the tone-arm and provided witha gate extending downwardly and rearwardly from the inner end of said support, and upwardly and rearwardly toward the outer end of said support, the exit from said gate being lower than the entrance to the gate, the outer end of saidsupport forming a cam surface extending downwardly and outwardly to the exit from the gate; a rod-' supporting latch adjacent to'theexit from said gate; and amember connected with said extending longitudinally of the tone-arm and pivotally connected at one end there with upon a horizontalaxis at right angles to the tone-arm; a spring for depressing sald rod; cam mechanism having a support over which said rod rides during the forward movement of the tone-arm and provided with a gate extending downwardly and rearwardly from the innerend of said support; and means for automatically raising the needle-holder, by depression of said rod, said tone-arm having a vertical slideway for said rod at a point between the pivotal axis of the rodand said cam-mechanism, said brake being engageable with said turntable to carry. said rod upwardly through the rear end of said gate towards said support.

12. In a talking machineand in combination, a turntable; a tone-arm pivotallyv mounted upon a vertical axis; a vertically movable needle-holder mounted upon the tent-emu; a brake by tene arm 1,591,244 f if if I 5 into and out of engagement With theturn table arod extending longitudinally of the tone-arm and pivotally connected at one-end therewith upon a horizontal axis at right angles to the tone-arm; a spring for fdepressing said rod ycam-mechan1smhav1ng a" support over I which "said Ted rides during the forward'movement of the tone-arm and i Ward the outer end of-"said support, the exit from said gate being lower than the'enprovided with agate extending downwardly and rearwardly from'the inner end of said support, and upwardly and rearwardly. to-

trance to the gate, the outer end of said support forming a caln'surfaceextending downgate; a rod-supporting latch adjacent to the -15 wardly andoutwardly to the exit from the Y anism, saidbrake beingiengageable With" said turntable to carrylsaid rodupwardly past said latch. q a

In testimony whereof, I- have hereunto set my hand this 25th dayof November, 1922.

FRANK E. SMITH. 

